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DIMITRIOS THEODOROPOULOS


45 2018 이후 총 참여 횟수

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k fold with all combinations
I want to create K fold tests. Concretely, i want to split my data set in 10 folders.I want to use every time 7 for training ...

11달 전 | 답변 수: 0 | 0

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Choosing the right fetatures in classification
I have a classification problem .I have 5 classes and 10 features. Is there any statistical (??) method to understand which fea...

12달 전 | 답변 수: 0 | 0

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Texture Classification with Wavelet Image Scattering
I use Matlab R2017a and when i try this example https://uk.mathworks.com/help/wavelet/examples/texture-classification-with-wave...

12달 전 | 답변 수: 1 | 0

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Bag Of Words for Image classification
I am trying to apply the Bag Of Words for Image Classification of Bee Pollen.I am new in MATLAB and i have a major question. Fo...

약 1년 전 | 답변 수: 0 | 0

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Overwritting problem in for loop
I simply crop images and save them with a number.For example i have Grain #1,Grain #2,Grain #3.If i move to another image and c...

약 1년 전 | 답변 수: 1 | 0

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Save different values of the same table from a loop
I have a table which is created from a loop.Problem is that overwrites the previous table for diffrent k and I dont know how ...

약 1년 전 | 답변 수: 1 | 0

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Split jointed bee pollens
I believe this is a difficult problem...I want to split 2 or more jointed bee pollens....I n the upper right area i use this ...

약 1년 전 | 답변 수: 0 | 0

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Crop with imfreehand?
I dont know if my question has an answer.I have an image and crop a ROI with imcrop [cropped_image,rect]=imcrop(original_image)...

약 1년 전 | 답변 수: 2 | 0

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Save to json problem
I create these columns from a for loop. idx are indexes eg idx=[2 3 45]. Area ,Eccentricity etc are regionprops. Each Pollen h...

약 1년 전 | 답변 수: 1 | 0

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How to call a function from outside itself ?
Altought it is basic i cannot understand how it works in Matlab 2017.. I have 2 simple functions function y1=square(x1) y...

약 1년 전 | 답변 수: 1 | 0

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Auto cropping of pollen
Ι want ot do the following: I have this image and i want to create ROI of a pollen automatically.If i imcrop for example a s...

약 1년 전 | 답변 수: 1 | 0

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folder split into parts
I have a medical folder with 2 kinds of data Prostatex0000_* and Prostatex0001_* How can i split the original folder into 2 su...

약 1년 전 | 답변 수: 1 | 0

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open nii images with matlab R2017a?
I use Matlab R2017a but i cannot open nii images with niftiread command... Do i miss something??How can i open them??

1년 이상 전 | 답변 수: 1 | 0

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답변 있음
How to connect GUI sliders to image analysis
Cris i copied your code and get the following error i modified the code bit in order to see the values from sliders in edit t...

1년 이상 전 | 0

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How to connect GUI sliders to image analysis
I want to instantiate this GUI The project is the analysis of bee pollen.I first load the image by the left pushbutton.There ...

1년 이상 전 | 답변 수: 4 | 0

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답변 있음
How to connect GUI sliders to image analysis
Ι am still very confused...I start with some default values and crop the image.I get an analyzed image.Now i use the slider to g...

1년 이상 전 | 0

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opposite result returned from charpoly
I have this matrix A=[1 1 2;1 2 1;2 1 1] and want to find the charpoly(A) The result by hand is the opposite that Matlab rerur...

1년 이상 전 | 답변 수: 0 | 0

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Use adjusted with imcontrast tool image
I dont know how to use the image which is adjusted from imcontrast tool. I take my original photo(image1) and then i turn to gr...

1년 이상 전 | 답변 수: 0 | 0

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Creating an array from a loop
I have a list idx=[1 3 5 12].Every index represents an area in separate_areas list.For example separate_areas(3)=1615. I want t...

1년 이상 전 | 답변 수: 1 | 0

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Brain MRI Tumor questions
In the project <https://www.mathworks.com/matlabcentral/fileexchange/55107-brain-mri-tumor-detection-and-classification Brain MR...

1년 이상 전 | 답변 수: 1 | 0

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해결됨


Remove any row in which a NaN appears
Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...

1년 이상 전

해결됨


Back and Forth Rows
Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 wind back and forth along the rows as shown in the...

1년 이상 전

해결됨


Create sequnce 1 4 9 16 25.........
Create sequnce 1 4 9 16 25......... upto entered input value using matlab scripting commands. Let y be output and x be input

1년 이상 전

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Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

1년 이상 전

해결됨


Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

1년 이상 전

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Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

1년 이상 전

해결됨


Replicate elements in vectors
Replicate each element of a row vector (with NaN) a constant number of times. Examples n=2, A=[1 2 3] -> [1 1 2 2 3 3] ...

1년 이상 전

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Intesities included inside ROI
When i select a Roi with imfreehand ,by right-clicking mouse i can select "Copy Borders". Is there any way (without createMask...

1년 이상 전 | 답변 수: 0 | 0

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해결됨


Check if number exists in vector
Return 1 if number _a_ exists in vector _b_ otherwise return 0. a = 3; b = [1,2,4]; Returns 0. a = 3; b = [1,...

1년 이상 전

해결됨


Summing digits
Given n, find the sum of the digits that make up 2^n. Example: Input n = 7 Output b = 11 since 2^7 = 128, and 1 + ...

1년 이상 전

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